The sand mass does not fall out of the moulding box but is held firmly in it when the moulding box is lifted. This is due to the property of

The sand mass does not fall out of the moulding box but is held firmly

1.	The sand mass does not fall out of the moulding box but is held firmly in it when the moulding box is lifted. This is due to the property of
A.	adhesiveness of sand
B.	plasticity of sand
C.	porosity of sand
D.	refractoriness of sand
Answer» B.